Plane.



No. 738,501.. ATENTBD SEPT. s, 1903 A. W. STANLEY & E. A. SGHADE.

PLANE.

APPLICATION nnnn ran. 11. 1903. no 110mm.

A fro/#615 r Patented September a, 1903.

V UNITED STATES PATENT ()FEICE.

ALIX W. STANLEY AND EDMUND A. SCHADE, OF NEW BRITAIN, CON- NECTICUT, ASSIGNORS TO STANLEY RULE & LEVEL .COMPANY, NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNEOTICUT.-

PLAN E.

SPECIFICATION forming part of Letters Patent No. 738,501, dated September 8, 1903.

' Application filed February 11, 1903. Serial No. 142.845. (No model.)

To all whom it may concern: I

Be it known that we,,A LIX IV. STANLEY and EDMUND A. SCHADE, citizens of the United ,States. residing at New Britain, in the county of' Hartford, State of Connecticut, have in vented certain new and useful Improvements in Planes, of whichthe following is a full,

. clear, and exact description.

This invention relates to planes, and particularly to improvements in'the construction of that class of planes adapted to be used on curved surfaces, sometimes called circular' planes. In'planes of this character the base or sole is made flexible, so that it may be bent to any desired curve to cause the plane to fit onto a-curved surface, either concave or convex. The sole portion of the plane is usually made of sheet metal, such as spring-steel. 1t

is highly desirable in planes of-this character that means he provided whereby the adj 11st ment of the sole to the desired curve may be eifected accurately and quickly. To that end,

thereforathe' main object of this invention is to provide simple and efiective mechanism *5 for attaining these results. v

In the accompanying drawings, Figure l is a side elevation illustrative of a specific em--' bodiment of my invent-ion, the sole of the plane being curved to fit to a concave surface Fig. 2 is a fragmentary perspective view of detached details of construction.

1 is the main body portion.

2 isthe base or sole portion. The sole portion 2 is capable of being curved relatively to the main body portion 1. the portion 1 is connected to the tion" of the sole2.

3 is thefrog,'carried by the frame 1 and in middle porturn supporting the plane-iron 4 and the ad justments therefor. It is not necessary to explain in detail the adjustments for the planestitute no part of this invention.

iron, because they are well known and con- 5 isa screw-threaded post mounted in a suitable screw-threaded bearin g on the forward part of the body 1.. i (i is a knob or' handle carried by the post 5. When said post is rotated it will move up and down relatively to thebody 1.

In the form shown 7- is a telescopic extension of the post 5. The connection between the post 5 and its extension '7 is screw-threaded. The screwthreads on the post which take into the'frame 1 are right-hand threads, while the screw threads on the extension 7 which take into the post are leftliand three ds,or vice versa. The post extension 7 is connected to a lever S by means of a link 9. The lever S is pivotally mounted in the body 1. The link 9 prevents the extension 7 from rotating. The parties-- lar screw-threaded adjustment of the post 5 relatively to the frame 1 and the extension 7 relatively to the post 5 produces double'the tively, so that the movement of one of said lovers will be transmitted to the other-for example, the movement of the lever S by the aforesaid means will produce a corresponding movement in the lever 10. Hence as the lever S is inoved upwardly the sole 2 will be curved upwardly. If the lever 8 is moved downwardly, the sole 2 will be curved downwardly, and the position of the levers 8 and 10 and the degreeand direction'of curvature of the sole 2 are determinable solely by the handle 6. By means of a suitable indicating device it' may be ascertained whether the sole is fiat or curved and if curved what degree of curvature v exists in the sole. In the partiel'llar form shown the indicating device comprises a pointer 17, carried by one of the parts -for example, the b0dy-1- 'in sucha position as to project into the'path of movement of certain graduations carried by another part-for example, the segmental gear 13. Referring to Fig. 1, it will be seen that the pointer 17 projects into .alcurved slot in the segmental gear :13, adjacent to which curved slot there'are.

13 14 are segmental gears fixed on the'pivots 15 1G, respec- I certain graduations'from.zero upward and downward. These graduations indicate de grees of curvature in the sole. When the Zeromark on the graduated scale liesopposite the pointer or line of reading, it indicates that there is no curve in the sole. If any one of the graduations above the zero mark is brought into line with the pointer, it indicates to the user that the sole is curved upwardly to a certain definite degree.- The reverse is true of the graduatious below the zero-mark.

It might be said that the segmental gear 13 constitutes a'movable-pointer, which enables the user to accurately set the plane so that the sole Will becurved to any desired degree to fit to anyparticu'la'r curved surface,and this adjustment 'Inay be accurately and quickly effected Without any preliminary trials, such as fitting the plane to the particular curved surface upon which it is desired to operate.

When-the plane has been set as desired, a setscrew 18 may be operated to clamp the adjusting screw or post 5 and prevent accidental displacement. The set-screw 18 may the body portion and connected to the sole portion, segments of gears carried by the pit:- otal supports, an index or scale carriedby one or pointer-carried by the body portion of the plane ooactingwith the scale or index whereby the degree of curvatureof the sole portion may be indicated. I

2; A plane comprising-at body portion, a flexible sole portion secured thereto, a pair of arms pivoted in said body portion and connected to the ends of'the sole portion, an index or scale carried by one of said arms, and

a relatively stationary indicating member carried by the body portion of the plane and coacting with the scale or index for indicating the degree of curvature.

3. A plane for cutting curved'surfaces'conr prising a body portion, a sole portion secured thereto, a pair of arms-pivoted to the body portion and connected to the sole portion,

of said segments, and a stationary,indicator gear-segments mounted to operatewith said arms, one of said segments being slotted and having a scale or index adjacent the slotted ortion and'an indicatim member-carried bthe body portion of the plane cooperating with the scale or index for the purpose specified. Signed at New Britain, Connecticut, this 7th day of February, 1903, I p

r ALIX W. STANLEY.

EDMUND A, SCHADE. Witnesses ROBERT N. PEoK, WILLIAM J. \VQRAM. 

